<div class="doc-item" id="doc-2052"><h2 class="doc-item-name">with-open<span class="namespace">(clojure.core)</span></h2><p class="macro">Macro</p><ul class="var-arglists"><li>(<span class="var-name">with-open</span> bindings &amp; body)</li></ul><div class="var-docstring"><p>bindings =&gt; [name init ...]</p><p>Evaluates body in a try expression with names bound to the values
  of the inits, and a finally clause that calls (.close name) on each
  name in reverse order.</p></div><div class="var-source"><pre>; clojure/core.clj:2107
(defmacro with-open
  [bindings &amp; body]
  (assert-args with-open
     (vector? bindings) &quot;a vector for its binding&quot;
     (even? (count bindings)) &quot;an even number of forms in binding vector&quot;)
  (cond
    (= (count bindings) 0) `(do ~@body)
    (symbol? (bindings 0)) `(let ~(subvec bindings 0 2)
                              (try
                                (with-open ~(subvec bindings 2) ~@body)
                                (finally
                                  (. ~(bindings 0) close))))
    :else (throw (IllegalArgumentException.
                   &quot;with-open only allows Symbols in bindings&quot;))))</pre></div><div class="license"><p>Copyright (c) Rich Hickey. All rights reserved.</p><p>The use and distribution terms for this software are covered by the <a href="http://opensource.org/licenses/eclipse-1.0.php">Eclipse Public License 1.0</a>, which can be found in the file
          epl-v10.html at the root of this distribution. By using this software
          in any fashion, you are agreeing to be bound by the terms of this 
          license. You must not remove this notice, or any other, from this 
          software.</p></div></div>